2 74 SOUTH- AFKICAN BUTTERFLIES. 



in a longitudinal line with that just beyond extremity of cell ; large 

 spot on disc between third and first median nervules about the same 

 size as costal bar, but less elongate and more rounded ; inner-marginal 

 marking rather small, acuminate superiorly ; five almost parallel, thin, 

 submarginal white streaks, of which the innermost is indistinct and 

 more widely separated from the rest, more irregular, and the outermost 

 also indistinct. Hind-wing : central band broad, even, extending to 

 inner-marginal edge but not to costa, being abruptly rounded off just 

 below the first subcostal nervule ; five submarginal streaks much as 

 in fore-wing, but more distinct, the innermost less irregular and more 

 remote from the second. Under side. — Ground-colour much paler, 

 almost grey ; markings corresponding with those of upper side, but 

 submarginal streaks broader and more conspicuous. Fore-wing : 

 cellular longitudinal bar not, or but very indistinctly, transversely 

 divided. Hind-iving : basal portion with three curved transverse white 

 stripes (much as in N. Agatha, Cramer, but not nearly so conspicuous), 

 of which the first is on costal edge, and the third near central band, 

 and less distinct than the others. 



This butterfly is allied to N. Ildicerta, Drury (nee Cramer), and to 

 iV. Marjpessa, Hopff., but is considerably smaller than those species. 

 It agrees with the former insect in possessing the longitudinal white 

 bar ^ in the discoidal cell of the fore- wings (which character at once 

 separates it from Maiyessa), but differs markedly (l) in the short, com- 

 ixict, undivided eostal bar of the fore-ioings ; (2) in the hroad, even, 

 superiorly -rounded hand of the hind-ivings ; and (3) in having four 

 (instead of three) parallel hind-marginal white lines. Other characters 

 separating it from Marpessa are the small size and acuminated form of 

 the inner-marginal white marking of the fore- wings, and the entirely 

 different colouring and pattern of the under side. 



Mr. W. D. Gooch, after whom I have named this species, met with four 

 specimens in the neighbourhood of his plantation (Spring Yale) on the coast of 

 Natal. No other examples came under my notice until Colonel Bowker sent 

 one taken near D'Urban in December 1879, and again, in June 1881, for- 

 warded four others captured in the same locality. Nothing special in the 

 habits of the butterfly has been noted by either observer ; and it is not 

 unlikely that N. Goochii may often be passed over in mistake for N. Marpessa. 



Localities of Neptis Goochii. 



I. South Africa. 

 E. Natal. ' 



a. Coast Districts. — D'Urban (/. H. Bonlier). Little Umhianga 

 (TF. D. Gooch). 



^ In four of Colonel Bowker's specimens the inner portion of this bar is almost obsolete. 



